Improvement in machines for jointing staves



ZSheet's--SheetL` B. BARKER. Machinafor .Ininting Staves.

i Patented Sept.28,875.

2 Sheet's--Sheet-2.

lAulmlss -Pat'ented Sept. 28,1875.

f INVENTUM N. PETERS. PHOTO-LITHOGFPHER. WASHINGTON, [1CA .B. BARKER. Machine for lninting Staves'. ILLE-No. 168,125.

UNITED STATES 'PATENT v(Turion.

BENJAMIN BARMER, 0E ELLswoR'rn, MAINE.

IMPROVEMENT IN MACHINES FORJOINTING STAVES.

Specication forming part of Letters Patent'No. 168,] 25, dated September 28, 1875; application filed To all whom t may concern:

Be it known that I, BENJAMIN BAEKER, of Ellsworth, in the county of Hancock and State of Maine, have invented an Improvement in Stave-Jointing Machines, of which the following is. a specification:

The invention will first be fully described in connection with drawing, and then pointed out in the claims.

Figure lis a longitudinal-sectional elevation of my improved machine. Fig. 2 is a plan View. Fig. 3 is a cross-section, and Fig. et is an end elevation, showing some of' the parts.

Similar letters of reference indicate corresponding parts. ,f

A represents the saws5B, the arbors of the saws 5, G, the saw-frames; D, the axial bar, and E the cranks on which the saw-frames are mounted 5 F, the curved track, and G the straight carriage on which the staves are moved along the saws. Hrepresents the clips by which 'the carriage is mounted on the track; I, the dogs for holdin gthe staves; J, thefeedstrap, and K the rolls for pulling the belt; L,

a cord, and M a-weight, for pulling the carriage back 5 and N is a-stop, such as will be used in connection withboth dogs, for automatically detaching the stave for removing it when the carriage goes back. The feed-strap J and the cord L are attached tothe dogs in" such manner that by their tension they cause the dogs toy hold the work securely, pressing it dow'n on studs on the carriage. The track F andthe axial bar D are mounted on the vertically-adjustable fram'e O, while the cranked rods are on the permanent frame AP, so that the saws swing toward and from each other `as the frame is raised or lowered, and are thereby adjusted for wide and narrow staves.

The frame is supported on the levers Q, which connect with the oscillating crank-shaft R, for working in unison, and the adjusting handlever S is connected to the one on the operators side of the machine, so that he can conveniently shift thesaws to the staves to be dressed. The spring-pawl T and the rack U hold the frame in any position to which it may be adjusted. The inner feed-roll K is mounted on a slide, V, which hasa spring to keep the roll pressed up to the other, for pinching the feed-strap so as to work the carriage, and the slide is also connected to the foot-lever W by arm X, rod Y, bell-crank'Z, and rod L', so that v under the saws and the carriage-way, and over it is a counter-shaft, b, both being inclined laterally to the longitudinal axis of the machine, but in opposite directions, so that the belt passes under the pulley on the counter-shaft after passing over one saw-arbor, thence over the other arbor, and back to the driving-pnlley, in such manner that one belt and one drum serve to 'operate both saws. boxes for receiving the edgings from the saw, one of which is to be arranged outside of each saw on pivots e, so as to be readily overturned at any time to throw oft' the edgings. They will, in practice, be connected by rods and levers or other means, so that they can be operated simultaneously.

For adaptingthe machine to prepare staves for barrels of different sizes, the standards by which the saw-frames are supported on the axis-bar and the cranks E may be made exten.-

sible', to lengthen and shorten the radius of the saws and aXisbar.

By this machine staves can be rapidly jointed with bevels and bilges perfectly proportioned to their different Widths, which, I believe, has not up to this time been accomplished in any other machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patent'- v l. The feeding-strap J, adjustable and stationary feed-pulleys K K, and the foot-lever W and its connections, with the movable pulley, combined and arranged substantially as specified. Y

2. The feed-strap and the reversing-cord,

connected to the dogs I in such manner that their tension holds the dogs in the staves, substantially as specified.

3. In combination with two adjustable inclined saws, the sliding carriage, automatically-acting dogs, and the inlieXible verticallycurved rail, having its radius of curvature all on oneside, as shown and described.

BENJAMIN BARKER. Witnesses;

j HENRY S. PIERCE,

LEMUEI. A. ScrANDIsH.

d represents the 

